Doorstop



N. B. HURD DOORSTOP Aug. 10 1926.

Filed Dec. 26, 1925 INVENTOR W55. 5cm

ATTORNEYS Patented Aug. 10, 1926.

umrso STA OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE AMERICAN OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF NORMAN B. HURD,

HARDWARE CORPORATION, CONNECTICUT. I

. My invention relates to door stops or holders,the object being to fective and durable mechanism the door ajar at any to the door opening, provided with means easy adjustment.

TES

DOORSTOP.

Application filed December 26, 1925. Serial No. 77,828.

simple, effor holding desired angle relatively provide to permit quick and In the accompanymg drawings- Fig. 1 is a plan v1ew showing my lnvent1on as 1n use; I

Fig. 2 is view of certain parts,

holder being the other;

Fig. 3 is a view a relatively enlarged sectional the two arms of the swung into positionone above parts in perspectlve and slightly separated,

to facilitate sembly.

1 represents the top 2 represents sents conventionally a door check of any desired type,

cured to the invention is ciated with represents a an understanding of the asof a door casing. a door, hinged at 3. 4 repreand closer the same being seupper part of the door 2. My of particular value when a'ssoa door closer of-this type. 5 lever arm carried and operated by the door closer 4. This arm is connected at its outer described to is connected end in the manner hereinafter a second arm 6, which in turn at one end and arranged to be connected at ends to a door and a door casto the door casing 1. The arm 5 is provided at its outer end with a flat an.-

nular bearin head 7 in the center of which is an upstan ing hub 8. 9 is a slot extending diametrically across the hub 8, while 10 is a bolt passa e head 7, 851a extending through the bearing bolt passage being located at one side of the center of the hub 8. The

arm 6 carries a ring-like hearing which I may head 11, term a cam ring and which, as to Flg. 2, is tapered so as to be thinner at one side than the other.

This bearing 11 rotatably so as to rest on the bearing fits on the hub 8, face of the head 7. The ring 11 is preferably formed separately from at 12, so as the arm 6 and is pivoted thereto to have a slight compensating rocking motion up and down.

14 is a di sk-like bearing plate arranged olt passage provided wi nut 18.

10 in the hu 8. 17 is a bolt th a snugly fitting adjusting which mechanism is cam ring When tliese several parts have been assembled, as shown in F1 14 stand at a slight ang other,

2, the parts 7 and e relatively to each since they both bear upon the tapered 11. It therefore follows that, if

upon the position of the adjusting nut 18 on the bolt 17. By slacking OK the nut a wlder range of rotary movement of the cam ring 11 relatively to the parts 7 and 14 may be had, while by tightening up said nut a showing several of the lesser range of movement may be had before the parts become jammed. It is this jamming of the parts that serves to hold the two arms 5 and 6 (and hence the door) at a predetermined angle.

It should be understood that I have shown and described my invention in only one preferred and successful form, and that I am various chan es may be made e sp1r1t or scope 1. A door holder mechanism, including two arms pivotally connected to each other their -opposite ing, said pivotal connection between said arms comprising a bearing head on one of said arms having an annular bearing surface and a central raised hub, the other arm having a bearing head comprising a cam ring mounted to rotate on said hub and hav- 1ng two annular bearing surfaces, a bearing plate above said hub, arranged to coact with the bearing surface on that side of said cam ring, means for holding said bearing plate against rotation relatively to said hub, and adjustable means of connection between said bearlng plate and the first-mentioned bearing head to two for the purpose described.

vary the spacing between the 2. In a construction such as set forth in claim 1, said adjusting means comprising a bolt passing through said parts at one side to rest upon the cam ring 11. On the under of the center of the same.

3. In a construction such as recited in claim 1, said cam rmg being pivotally connected to 1ts respectlve arm for compensating action.

4. In a claim 1, said adjusting means comprising construction such as recited in a no bolt passing through said parts at a point within the cam ring.

5. A door holder mechanism including two arms having coacting bearing surfaces at one end, the opposite ends being arranged to be attached to a door and door casing, a bearing plate havin a bearing surface coacting with a second bearing surface on one said arms, said bearing surfaces, on one arm being inclined to each other, and adjustable means loosely connecting said plate and arms and limiting the extent of separation of said three connected members, whereby, upon a predetermined relative rotation between said arms, said jnclined surfaces on said one arm will wedge on the coacting surfaces on said other arm and plate to limit the extent of relative rotation between said arms.

6. A door holder mechanism including two arms arranged to be connected at one end to a door and door casing respectively, a

bearing plate on the outside of one of said arms, a pin member loosely connecting the opposite ends of said arms and said plate, said pin means serving to limit only the saparating movement of said three connect- 0 members, said connected members having wedging means arranged to jam upon a predetermined relative rotation between said arms.

7. A door holder mechanism, including a pair of arms to be connected at their ends to a door and door casing respectively, a pin extending through the opposlte ends of said arms, a late having an eccentric a erture therein t rough which said pin exten s, said arms and plate havin coacting wedging bearing surfaces to limit the extent of rotative movement between said arms, and adjustable means on said pin for varying the permissible extent of separation of said arms and plate longitudinall of said pin.

N O MAN B. HURD. 

